Unknown compound X is spotted on a TLC plate that is then developed in hexane. The solvent front is measured at 4.5 cm as well as the distance traveled by compound X is measured at 1.5 cm. A sample of caffeine is spotted on the TLC plate that is then developed in a 1:1 hexane/ethyl acetate solution the solvent front is measured at 6.5 cm as well as the distance traveled by caffeine is measured at 2.15 cm. Explain what can be found about the identity of compound X in light of this data.